22155235522 has 32 divisors (see below), whose sum is σ = 38368721664. Its totient is φ = 9398116800.

The previous prime is 22155235517. The next prime is 22155235523. The reversal of 22155235522 is 22553255122.

It is a happy number.

It is a super-2 number, since 2×22155235522² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22155235523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5507872 + ... + 5511892.

It is an arithmetic number, because the mean of its divisors is an integer number (1199022552).

Almost surely, 2^22155235522 is an apocalyptic number.

22155235522 is a deficient number, since it is larger than the sum of its proper divisors (16213486142).

22155235522 is a wasteful number, since it uses less digits than its factorization.

22155235522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7954.

The product of its digits is 60000, while the sum is 34.

The spelling of 22155235522 in words is "twenty-two billion, one hundred fifty-five million, two hundred thirty-five thousand, five hundred twenty-two".